9780194038973: English file. Digital gold B1-B2. Student's book. Woorkbook. Without key. Per le Scuole superiori. Con e-book. Con espansione online: 0194038971 - AbeBooks
Unit 5 - Online Workbook
English File 4th Edition B1. Student's Book and Workbook with Key Pack - Latham-Koenig, Christina; Oxenden, Clive; Lambert, Jerry: 9780194058063 - AbeBooks
Curso Intensivo de Inglés B1 Online - Proficiency Centro de Idiomas
Close-up B1 with Online Student Zone – NGL ELT Catalog – Product 9781408095546